PMID: 15244837Jul 13, 2004Paper

Anomalous intensity dependence of optical reorientation in azo-dye-doped nematic liquid crystals

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
M BecchiD Statman

Abstract

The intensity dependence of optical nonlinearity in a nematic liquid crystal doped with an azo-dye is investigated. The reorientational part of the nonlinearity changes from self-defocusing to self-focusing character while the intensity passes through the saturation value of trans-cis photoisomerization. This observation, in accordance with previous models, indicates that the optical torque generated by the trans-isomers is of opposite sign than the torque generated by the cis-isomers. At very low intensities a further reorientational nonlinearity was found, which is attributed to light-induced orientational redistribution of adsorbed molecules at the surface.

References

Apr 1, 1994·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·I Jánossy
Oct 1, 1996·Physical Review. B, Condensed Matter·K TanakaN Yoshida
Jan 22, 2002·Physical Review Letters·M KreuzerL Marrucci

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Citations

Oct 12, 2016·Proceedings of the Japan Academy. Series B, Physical and Biological Sciences·Hongjing LiYifei Yang
May 23, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Andrea Fratalocchi, Gaetano Assanto
Jul 13, 2011·Optics Express·Hui-Chi LinAndy Ying-Guey Fuh
Oct 17, 2014·Soft Matter·Shuaijun PanWeijian Xu
Sep 19, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·David StatmanChristopher Brennan
Dec 10, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Carla Alice CarabetPetre Rotaru
Jan 15, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·E A BabayanM I Barnik
Mar 16, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·David StatmanJames C Lombardi

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